package com.sky.interceptor;

import com.sky.constant.JwtClaimsConstant;
import com.sky.context.BaseContext;
import com.sky.properties.JwtProperties;
import com.sky.utils.JwtUtil;
import io.jsonwebtoken.Claims;
import io.jsonwebtoken.JwtParser;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.method.HandlerMethod;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
//@Component
public class jwt implements HandlerInterceptor {
    @Autowired
    private JwtProperties jwtPropertie;
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //判断当前拦截到的是Controller的方法还是其他资源
        if (!(handler instanceof HandlerMethod)) {
            //当前拦截到的不是动态方法，直接放行
            return true;
        }
    //1、从请求头中获取令牌
    String token = request.getHeader(jwtPropertie.getAdminTokenName());

    //2、校验令牌
        try {

        Claims claims = JwtUtil.parseJWT(jwtPropertie.getAdminSecretKey(), token);
        Long empId = Long.valueOf(claims.get(JwtClaimsConstant.EMP_ID).toString());
        Long status=Long.valueOf(claims.get("status").toString());
        BaseContext.setCurrentId(empId);
        BaseContext.setCurrentstatus(status);
        //3、通过，放行
        return true;
    } catch (Exception ex) {
        //4、不通过，响应401状态码
        response.setStatus(401);
        return false;
    }
}

}
